| 1916 | G14 | Completed |
| 1928 | Otus (N92) | Launched |
| 1929 | 1912 - 1929: Maidstone | Sold |
| 1939 | P511 | HMS Undine departed Blyth to take up a patrol position in the Heligoland Bight. When war broke out between Britain and Germany this became her 1st war patrol. |
| 1941 | Upholder (N99) | HMS Upholder fires torpedoes from long range against the Italian troop transports Oceania and Neptunia off the Tunisian coast. All torpedoes missed. |
| 1943 | Torbay (N79) | HMS Torbay sinks the Italian sailing vessel Columbo with gunfire 15 nautical miles west of Kos, Greece. |
| 1944 | Tantalus (P318) | HMS Tantalus sinks a Siamese sailing vessel with gunfire in the Strait of Malacca and damages another. |
| 1944 | Vox (P67) | HMS Vox sinks a sailing vessel with gunfire off Crete. |
| 1944 | Amphion (P439) | Launched |
| 1950 | Sidon (P259) | Towed the midget submarine "XE8" from Portsmouth to Plymouth. She also joined the 2nd Submarine Flotilla on this date. |
| 1957 | Selene (P254) | HMS Selene sinks five fishing boats (by accident) in the river Yare at Great Yarmouth in 1957 at the end of its paying off visit. |